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    <title>Document</title>
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      function Foo() {
        getName = function () {
          console.log(1)
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        return this
      }
      Foo.getName = function () {
        console.log(2)
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      Foo.prototype.getName = function () {
        console.log(3)
      }
      var getName = function () {
        console.log(4)
      }

      function getName() {
        console.log(5)
      }

      Foo.getName()

      getName()

      Foo().getName()

      new Foo.getName()

      new Foo().getName()

      new new Foo().getName()
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